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All results from a given calculation for CFClCClF (trans-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-1194.434927
Energy at 298.15K-1194.435703
HF Energy-1193.627246
Nuclear repulsion energy353.016437
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1907 1765 0.00      
2 Ag 1301 1204 0.00      
3 Ag 682 631 0.00      
4 Ag 455 421 0.00      
5 Ag 309 286 0.00      
6 Au 403 373 2.03      
7 Au 146 135 0.30      
8 Bg 624 578 0.00      
9 Bu 1322 1223 349.11      
10 Bu 947 876 194.28      
11 Bu 453 419 4.00      
12 Bu 190 175 2.88      

Unscaled Zero Point Vibrational Energy (zpe) 4369.4 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 4043.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CISD/6-311G*
ABC
0.14566 0.05095 0.03774

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.065 0.656 0.000
C2 0.065 -0.656 0.000
F3 -1.247 1.228 0.000
F4 1.247 -1.228 0.000
Cl5 1.247 1.737 0.000
Cl6 -1.247 -1.737 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.31781.31352.29571.70052.6686
C21.31782.29571.31352.66861.7005
F31.31352.29573.50072.54622.9647
F42.29571.31353.50072.96472.5462
Cl51.70052.66862.54622.96474.2767
Cl62.66861.70052.96472.54624.2767

picture of trans-1,2-dichloro-1,2-difluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 121.499 C1 C2 Cl6 123.806
C2 C1 F3 121.499 C2 C1 Cl5 123.806
F3 C1 Cl5 114.695 F4 C2 Cl6 114.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability